Home / 1,186,800.86-1,637,778.42-642,947.24

Finding the Fourth Proportional to 1,186,800.86, 1,637,778.42 and 642,947.24

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Solution

The fourth proportional to 1,186,800.86, 1,637,778.42 and 642,947.24 is: 887,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,800.86 : 1,637,778.42 = 642,947.24 : x
  2. Step 2: Convert to fraction form
    1,186,800.86/1,637,778.42 = 642,947.24/x
  3. Step 3: Cross multiply
    1,186,800.86x = 1,637,778.42 × 642,947.24
  4. Step 4: Simplify right side
    1,186,800.86x = 1,053,005,114,870.56
  5. Step 5: Solve for x
    x = 1,053,005,114,870.56/1,186,800.86
  6. Step 6: Final answer
    x = 887,263.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.